/Engine/Source/Runtime/Engine/Classes/Components/ChildActorComponent.h
Return the custom HLODBuilder class that should be used to generate HLODs for components of this type. Allows the HLOD system to include whatever is needed to represent a component at a distance. For example, this is currently used to build custom HLODs for landscape streaming proxies. This could be used to generate fake lights, represent custom FX at a distance, or even to insert externally generated HLODs.
virtual [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< class [UHLODBuilder](API\Runtime\Engine\WorldPartition\HLOD\UHLODBuilder) > GetCustomHLODBuilderClass() const